Coin-in-the-slot machine for the polishing of finger nails



Sept. 1, 1931. 1.. w. SCHAAFF 1,821,034

COIN-IN-THE-SLOI' MACHINE FOR THE POLISHING OF FINGER NAILS Filed Feb. 10. 1928 7 Sheets-Sheet l INVENTOR z lw fizz-MM;

ATTORNEY,

L. W. SCHAAFF Filed Feb. 10, 1928 Sept; 1, 1931.

Sept. 1 1931. L. w. SCHAAFF 7 Sheets-Sheet 3 Filed Feb. 10, 1928 ATTORNEY Sept. 1, 1931. L. w. SCHAAFF Filed Feb. 10, 1928 7 SheetEhSheet 4 Sept. 1, 1931. L. w. $CHAAFF'\ I Filed Feb. 10. 1928 7 Sheets-Sheet 5 INVENTOR [00/8 /I. SEA/flat;

ATTORNEY,

IIII II/IIIII/I/In IIIII P 1, 1931- N L. w. SCHAAFF 1,821,034

COIN-IN-II'HE SLOT MACHINE FOR THE POLISHING 0F FINGER NAILS Filed'Feb. 10, 1928 7 Sheets-Sheet 6 is n INVENTOR J Za /5% cbwafir g- BY 5 ATTORNEY,

Sept. 1, 1931. w. SCHAAFF 1,821,034

COIN-IN-THE-SLOT MACHINE FOR THE POLISHING 0F FINGER NAILS Filed Feb. 10 1928 7 Sheets-Sheet 7 IlII-l lllllllllllllllllllitlllll illllllIlllllllllllllllllllllli INVENTOR ATTORNEY find it difficult to properly manipulategthe the number of reciprocations of the operating 75 i i treatment applied to theobject treated conprovide a coil control mechanism functionvide an automatic manicuring machine by ing a section of the said band into operating 90 Patented Sept. 1 1931 1 ,821

UNETE,' STATES PATENT OFFICE LOUIS W. soi-rAArr, or wnnriawxnn, nEW JER-sEYi ooin-in-rrzasror MACHINE non TEE POLISHING or FINGER NAILS Application ra a February 10, 1928 semi no. 253,339. 7

This invention relates generally to a mavide a nail polishing. machine having a rechine' having a. reciprocating element, and ciprocating nail treating surface, with means I more specifically to an automatic machine for provided to feed a fresh supply of said surpolishing andfmanicuring finger nails by face into operative position as required. means of a moving surface operative only Still another object of this invention is to upon the insertion of an authorized coin into provide a nail treating machine having a the machine. 1 treating surface, properly enclosed and en- Proper care of the finger nails for reason cased, access being obtained to the nail treatof health sanitation and appearance is being surface .by inserting the authorized coin 1) coming more and more-the concern of ininto the machine. i 30 (llVlClLlttlS Up to the present time finger Another; object of this invention is to pronails have, in the main, been treated by a vide a nail treating machine with a recipmanicurist or the individual himself, using rocating treating surface properly enclosed hand implements. To resort to a manicuring and encased, reciprocation of the surface becst-ablishment and have a skilled manicurist ing obtained by inserting the authorized coin 5 perform the treatment is both expensive and into the machine, the duration of the reciprotime-consuming. Not only is the actual cations and the operation of the machine betreatment tedious, but additional loss of time ing determined by a timing device. frequently results at these establishments A further object of this invention is to because available manicurists arealready 00- provide a coin control mechanism of special V cupied With prior customers. For the inadaptability to applicants particular nail dividual to treat his finger nails with hand treatingmachine. I i implements is also unsatisfactory. If he be A still further object of this invention is a right handed person, for instance, he Will the provision of mechanism for measuring s implements With his left hand to treat the surface, means for throwing the prime mover finger nails on the right. He may be furout of operation after a predetermined numther handicapped byfnot'having the proper ber of reciprocations of theoperating surimplements at hand, at the time desired.- face, and means for enclosing and locking "'9 An object of the present invention is to the operating surface against unauthorized provide mechanism for operating a treataccess. i Y element where the operation upon or A further object of this invention is to sists of a series of to and fro reciprocations. ing to throw the prime-mover into action and Another object of this invention is to pro-i to unlock and open the shutter, so that opers5 vide a. coin controlled reciprocating mechaative access to the machine may be had. ism operative for a predetermined time A furtherobject of this invention is to upon the insertion of a coin; provide mechanism for carrying a band of Another object of this invention is to pro-v treating material, with provision for feedmeans of'which finger nails may be treated-in position at each operation of the machine, so a rapid and efficient manner. 1 that a customer will be provided with a fresh I v .ii'nother ,ob ect of this invention is to proand unused treating band foreach coin inv dc anail polishing machine simple, pracsertion. [I i tical and comparat velyinexpensive to oper- Anotherolqect of this invention is to proe es' 'ncdfor use in manicuring estabvide a manicuring machine in Which the and elsewhere, and capable of polishing compound iscarried by a reciprop and polishing the nails of both cating band and a fresh section ofthe band hands ithout injury to the same. a 1 is fed into operative position for each cusiinother object of thisinvention is to protomer in a sanitary manner. v v

closed position at the termination of the operating cycle. Y I

Another ob ect is to provide a nail mamcuring coin controlled-mechanism strong and durable, eificient and quiet in operation,

and substantially tool proof.

Other 'objectsof this invention will be in part obvious and in part pointed out as the disclosure proceeds.

In accordance wlth'this invention, when a coinis dropped into the coin slot, it proceeds into a coin control mechanism and forms the connecting element between a pair of rotatable disks. VVhenone of the disks is rotated manually by means of a handle, the second disk is'rotated through a certain angle before the coin drops through the control mechanism and into'a coin box. The disks are so 'spaced'and formed that only coins of a definite size and shapewill engage the second disk to rotate it and throw the machine into operation. The second disk above mentioned is connected to a switch device which is arranged to connect a small electric motor to a power source uponrotation of the disks. The motor drives a recipromove at considerable speed in a to and fro direction. Rotation of the second disk open the number of reciprocations" thereof, and

after apredetermined number have bGQIl'QXG- :Cuted, throvts the switch to shut as the mo tor, unlocks the shutter from its open position, and'clos esthe same. The shutter, then automatically l-ocks in closed position. The

machineis now in readiness to repeat the operation upon insertion or another coin.

The-polishing band is preferably carried on 'a-spool or roll, and mechanism is provided forfeedinga'it'resh section into polishing position acrossa padded trameadjacent the I casing opening for. each coin insertion, so that each customerg 'will have his finger 4 nails treated-by a fresh and unused section of the band. The mechanism of the machine is compactly"arrangedfand may be enclosed in an attractive casing to suit particular tastes and needs! The machine is not only adapted for installation in: manicuring establishmentsand beauty 'parl ors, but is particularly adapted :tor' installation in waiting raised position with band feedin resilient band supporting cushion, taken on line 15 15 of Fig. 14

rooms, subways, hotels and other places Where people congregate.

In order that a clearer understanding of my invention may be had, attention is hereby directed to the accompanying drawings forming part of this application and illustrating certain possible embodiments of the invention. V I I Fig. 1 is a vertical side view of the machine with a side Wall removed to show the interior operating mechanism of the machine taken on line 11 of Fig. l;

Fig. 2 is a vertical cross-sectionalview 0 the machine showing side elevations reciprocating, coin control, and mechanisms in non-operative position, o'n'iine 22 otFig. 4; V I

V Fig. 3 is another vertical cross-sectional View of the iii'iachine showing the shutter 1 the. reciprocating, c control and timing mechanisms appearing operating position taken on line 33 of Fig. 4; p g p Fig.4 is a horizontal cross-sectional view of the machine showing cross-sectional and top views of portions of the operating mechanism, taken on line 44E'ot Fig. 1;

Fig. sis another horizontal cross-sectional View of the machine, taken on line 5- 5 of V Fig. '6 is an enlarged side elcvation ot the coin control mechanism and the mechanism for feeding fresh sections the polishing band-into operative aosition; Fig. 7 is another side elevation of the coin control mechanism ith coinincerteil and about throw the machine into operation and the band feeding mechani in inoperatix engagement F l i Sis a: dctailec. tragmental view oi the g mechanism, taken on line 8 3 of Fig. '0; f V

' J is a side elevational view of he control mechanism showing a coin the abonhto be ejected, the "band fee iii 0 mechanism in operative engagement device connected to the coin; cont n'ism throwing the switch contr motor;

Fig. 10 is a tragmentalcrosssecthmid vice of the coin controlmechanis1n,'- taken on line 10-10'of- Fig. 4; I a 7 Figs. 11 and 12 are si'dc elevations of coin "enga 'ingdisks '01"- the coin control C? r mechanism; 7 V v V 7 no Fig. -3 1s a front elcvat onot therccqarrr eating b and carrying tramsshewing a section of the band in operative position;

Fig. 1 is a front elovational' view o the resilient cushion Whichsupports a section cf 1133 the band i perative position, the band being removed;

F1 15 1s a cross-sectional view oi the Figlti is an end elevation of the timing mechanism and. the motor control switch,

taken on line 1$-+16 oiil i ub I" ,17 is fragnicnta-l horizontal crosstogether to form a unitary and efficient machine.

The entiremechanismis housed in a suitable casing, preferably, comprising a bottom )late 6 a ILlnOVflblGfOl) )late 'Z a front wall 8, anda removable encasing member 9 constituting the tvo side and rear walls, all

supportedon suitablepedestal '10. f

1The casing preferably has a'vertical channei-shaped formation 11 (shown more parpartieularly in in the front wall 8 thereof, extending the full height of the easfor a purpose hereafter to be described. An opening 12 is providedin the frontwall,of such shape-and size as to permit the free insertion of the fingers and finger nu to receive the polishing treatment. Horizontal top 13 and bottom 14 cross pieces,

, joiningfthe ends ofa pair ofspaced vertical members 15 and '16 which are secured to the frontwall 8 of the casing, serve. to guide and direct theto and fro reciprocations of the, band supporting structure. The band supporting structure comprises, broadly,'a rectangularframe 17 guided in its reciprocations by means ofapair of pins 18 extend- J ing upwardly therefrom through suitable holes in top cross piece 13 and apair of pins 19 extending downwardly therefrom through suitable holes in bottom cross piece'l l. Coil springs 20 encirclin'g, each pin may be provided; to facilitate the reciprocating opera-' tion' and insure smoother running. Asuitable tray 21 supported from the rectangular frame by means of, brackets 22 is adapted to contain and hold afresilient cushion 23 adjacent to the opening 12. The" cushion may be coinposcdof rubber sponge, felt or other suit able cushioning material. A supply reel 24 carrying the band 25is' rotatably supported v by spindle 26 journaled to side brackets inst l impregnated with a polishing or abrasivepowder, and is fedfrom supply reel 27' and 28 attachedto the rectangular frame 17.' Band 25 preferably'consists of woven 2i across the front face of cushion 23 over a feed c .cr 29, and finally Wound upon reel "3O rotatably supported spindlel-lljoun naled to bracket 27 and bracket 32 attached totheirectangularframe 17'. Spindle 26 may ialview. of the motor control switch,

able friction device may be disposed between the bracket 28 and supply reel 24:, so that the reel does not rotate unless a slight pull is exerted on the band by feed cylinder 29, here after to be described. Spindle 31 supporting the take-up reel may likewise be withdrawn from its sup1')ort1ng brackets 27 and 32 by removing a nut on the end thereof, thus permitting one reelto be removed and another substituted. The feed cylinder 2 9"is rotatably"supported by shaft 35 journaled to bracket 27and bracket secured to the rectangular frame 17. A pulley wheel 37 secured to and rotating with shaft 35 and pulley wheel 38 secured to and rotatingwith spindle 31 are connected by suitable slip belting 39, so that take-up reel 30 is rotated each time feed cylinder 21 is rotated. Thus, it is seen that if the used band is not fed to the feed cylinderas fast as the band is wound thereon, thediscrepancy is provided for and adjusted by slipping of the belt. Suitable guide reels 40 and 41 journalec in the rectangular frame 17 may be used to guide the band to and from resilient cushion 23. As seen more particularly in Fig. 5, resilient cushion 23 is rectangular in hori: zontal cross-section with the sides thereof flared outwardly and conforming'in shape to channel formation 11 in the frontwall of the casing. Band 25 moves vertically across I the cushion and is guided to conform to the front and flared side wall contour of the cushion member by guide fingers 42 secured to tray member 21, as clearly shown in Figs. 13 and 1 1. Thus, finger nail access may be he to the l' and covered front and side walls of 'the cushion, as shown in Fig. 5. It is understood, however, that a. cushion of any desired horizontal cross-section. can be used best adapted to facilitate the polishing or cleaning operation;

Rectangular frame 17 guided by cross pieces 13 and Hand pins 18 and 19 is driven to reciprocate to and fro across theopening 12 by motor d. The motor may be supported and removably held to the bottom plate 6 by means of a block 43 and screw bolts 14. A

framework adapted to support portions of the operating mechanism is erected along the rear wall of the c sing, and may consist of a pair of angle iron uprights 4:5 and 46 sespaced apart, parallel supports 18 and 19 izo belt 57, rotatingshatt 52 and wheel S liked to shalt 59 journaled in brackets'GO and 61 securedto bottom plate, 6

driven by small pulleywhe'el 5lithrough an endless belt 62. This series-of :pulley wheels and belting constitutes the speed reduction device, end is. the preierred form, although 1t is understood that other reduction dev ces Frnay be used within the, contemplation of 'lhe operation the throw oifa neeting the motor the power source. Re

'1 A disk crank63 is secured to the proj ecting end of shait 5t and rotates therewith. The lower end oi deformedconnecting bar "54 is this invention; 7.

journaljed to crank pin 65 or disk cra-nkfifi, audits upper end s p votally secured to re 'ciprocatlngiraino l?by means of a rod (56.

Thus, it is seen that motor reoiprocates t 1e fralne'li and 2 section of theband across opening through the agency of pulleys, belting disk crank and connectlnp' bar, driving' the suineet a s reed best suited for ei'licient polishing or other operation to be performed.

'the desired speed for a particular operation ean-be obtained by substituting driferent sets I of pulley wheels.

i of theniotor is controlled by ritch connecting or -d1seon-,

' fe rring now particularly to Figs. 9, 1? and seen that irthe [18 4p conductor 67 leadsyl'or instance, 'lllOlIl the power source and connects with terminal 618 suitably secured to a 1ion-cohducting block (ES-fastened to bot-to n platefi. Conductor 70 leads froni-tern'iinel 71, parallel with and spaced from terminal 68, and also secured to non-conductingblock 69, to the motor; Itis n proper conductor'is inserted between the terminals 68 and 71, electric current willfiou roin the power source into the motor. switcheleinent 72 pivoted at 73 to plate Flor othersurtable supportconstitutes this/terminal connector. Resistance to the throw of switch element TQis provided for Cl) end ISthrouglrthe agoney or syitch element T2,;rnd d sconnected in Fig. 2. Si itch by rneanszoi a tongue 75 projecting laterally therefrom, the end of which'is tapered. The tapered portion of the tongue 72') is adapted to frictionelly slide over ridge TSJformedon the end of springeleinent T? secured to plate 74, all clearly shownin Fig; 18. The terminals 68and 71 are shown connected in Figs.

6 element "Z2Icarries a vertical extension 78 adeptechto' nivot outwardly on pin 79,;but

:' resiliently' held in erect position-by means manually and ex 7 J I meansiof handle-98 secured tl opening 92.

of a leaf spring 8!) se\ d to switch element 72 for purpose here tter to be described. v Switch element 72, to eonnectth-e motor to thepower source, "is adapted to be thrown by a coin control lnechanisnrnow to be described, The coin control mechanism generelly comprises a'disk member 81 filed to shaft 82 supported by and journaled to brackets 83 and .8%. (Shaft supporting brackets 83 and SL are secured to a horizontal plate member 85 supported firmly in position "by post 86 seeuredto horizontal frame member 47. A second disk member 8? journaled on shaftfo has'its inside face spaced from and parallel with the inside face of the first roenhoned d1sk'81. The space between the disks is in line vyiththe coin slot 88 in top "ieinber 7 nndcoin slot89 in plate85, so that the coin, which the coin co'ntrol mechanism -'1s designed to receive, V

'rendily'drop between the disks. The'inside face of disk 81 appears shown in Fig. 11. The'coin, when deposited between the di ks, rests on hub portion'SO of disk 8l. Disk 81 also has an elongatediaperture 91 in its side well; One end of the aperture terminates in an enlarged opening 92, of such dime ion that the pr-oger coin insertedin the reach is can be removed through thisenlerged opening. 'Disk 81 is further provided with a thickened edge por- 4- V I 1 V 4 l tron 93 substantially closing tne space between the d1sks,ithe thickened edge having a rounded abutment portion Self-or a purpose hereafter tobe described.

Disk 87 carries a pair of inwsrdlyaprojecting lugs 95 and 96, whichthe edge of the inserted coin is adapted to seat. A grooved track 9. is also formed on the inside face of disl'cS'l for a purpose present 7 to be described.

j-ectinp; thrQuglr'siots in jelate 85: and top member 7. 7

The proper coinis; dropped betweenflhe' disksbeiiore 10t21 1)1igr8l QKf xihck. "DzskSl is thoupositionedva" shoe in Fig. 6, with thelenlarged openingjSQ "Vertically beneath the coin slot 88. The co is prevented ihoui falling out of this enl r ed opening; when thedisk is in this po 3011, bygthe' spring blade 99 whose outer end 100 presses against the side'of the coin and holds it within the Spring in position to plate 85-by screws 101 other suitable'ine'ans. As disk STis rotated by a lateral pull on handI'eSS; lugs 95*a11d96 engagethe ed 13 01 the eoinendinoye it forward; illustrated in T top edge of the eoin' is thus moved into contact with rounded abutment 94 of the thickene'd edge portion. nn-rem rotation of disk 8/- secured a suitable V g. 8? may be rotate-(l tcrnally (it the casing by eto and pro- "plate 99 may be hired 7, The forward 1 will cause disk 8l'to rotatefes is. readily seen f1O1I1.F1g.u9, l e A p ck n1e1nber102 manner to plate 85 has an upturned'coin returns the disk to neutral position when the handle is released. Coil springv 107 secured to pin108 projecting from disk 81 and to post 86 pulls the disk back into neutral. position as soon as the coin has been ejected.

Bell crank lever 109 journaled to pin 1110 supported by plate 7 1 is operati'vcly. connected for rocking movement to disk 81 through connecting rod 111. As shown in Fig. 2,. arm 112 of bell crank lever 109 is adapted to engage switch element extension 79 to throw theswitch and start the motor. A timing device is provided to stop the motor after the band carrying frame 17 has made the predetermined number of reciprocations. A pair of spaced apart upright plates 7 4L and 113, secured together to bottom plate 6 in a suitable manner, and secured to each other by posts 11 1 constitute the supporting framework for the timing mechanism- A deformed arm 115 journaled at one end to shaft 118 secured to plates 7 4 and 113 has a pan formation 117 at its other end. extending under and adapted to engage the lower end of one of the downwardly extending pins 19. A pad 118 formed of rubber or other resilient material may be seated on pan formation 1.17. The pad is continually held in abutting contact with the lower end of pin 19 by means of coil spring 119 connected to arm 115 and one of the posts 114 joining plates 74 and 113, shown in Fig. 3. A ratchet wheel 120, connected to shaft 116, is adapted to be rotated by a pawl member 121 pivoted at 115" at its lower endto the deformedarm 11.5. The pawl 1.21 is he'ldin operative engagement with the teeth of the ratchet wheel 1.20 by means of a coil spring 122 attached to a pin 123 projecting from the pawl and apin 12 i projecting from the deformed arm. Downward movement offthe arm produced by downward movement of frame 17 causes pawlmember 121 to a tooth of the ratchet wheel, to rotate. the wheel through a certain fined angle. Upward movement of the arm, permittedby upward movement of the frame, causes the pawl member to disengage from the aforementionedtooth and move'to the next tooth on the ratchet wheel. It is understood that the relationship between the arm 115 and ratchet wheel teeth is such that pawl 121 'engagessi ccessive teeth on the ratchet wheel with each suc essive sorted.

downward movement of the arm. Thus, each completereciprocation of the frame rotates th ratchet wheel through anangle measured by the pitch of the ratchet' teeth. Reduction gearing, as shown in Figs; and 15, comprises small gear 125 secured to shaft .116 and rotated by ratchet wheel 120; and rotating large gear 126 fixed to shaft 127 journaled to the side. plates 74 and 113. One end of shaft 127 projects through plate 7% and has a disk 128 fixed to the end thereof. A stud member 129 is secured to the disk near its edge and is adapted to engage switch element extension 78 to throw the switch andstop the motor as the disk isrotated through the reduction gearing by ratchet wheel 120. Thus, it is seen that the switch is thrown and the motor stopped at each complete revolution of the disk 128, measured by a certain definite number of reciprocations of frame 17. The number of reciprooations of frame 17 required to move disk 128 through a complete revolution is de ermined by the relative size of the reducwheel 120. It is understood that by using the proper set of reduction gears, the motor can be stopped at the end of any desired munber of frame reciprocations. A friction brake, comprising a supporting element 130 and a friction pad 1.31 secured thereto, may be used to frictionally engage a side face of ratchet wheel 120 to prevent rotation thereof except as rotated by pawl member 1.21.

Before the switch can be thrown to start the motor, switch element extension 78 must be removed from the path of pin 129, as is readily seen in Fig. 16. This is accom plished in the following manner. Arm 112 of the rocking lever has a tapered projecting nose 132 formed .on its end, clearly shown in Fig. 17. When the bell crank lever is rocked through the rotation of coin actuated disk 81, tapered nose 132 at the end of arm 112 engages switch element extension .78, and pivots it outwardly against the action of leaf spring as it slides off the tapered nose 132 until it finally clears-pin 129. Switch element extension 78 ceases, to pivot outwarrly when it strikes the squared portion 133 the end of arm 112, The extension is then moved forwardly by arm 112 against action of latch spring 77, until the terminals 68 and 71are electrically connected by switch element 72. The amount of throw of switch element 72 can be fixed by stop pins 1.34, as shown in Fig. 2.

Shutter member 135 is normally in closed and locked position, and is only unlocked and opened by the rotation of disk 81, rotatable only when the proper coin has been in- Referring to Fig. 2, a bell crank lever pivoted to bracket 136 secured to top .ross piece '13 has one arm 137 connected to mg gears used and the diameter Of ratchet theshutter 135 by means of a connecting link 138 pivotally"connectedto the shutter by means 'of alug element 139. The other arm 140 of the bell crank lever is connected to one end of a locking arm 141. An

upper notch 142 and a lower notch 143 are cut in the other end of locking arm 141 with whichupwardly projecting lug 144 is adapted to cooperate. Lug 144 may be formed'as an integralpart of its inclined support 145 secured to a horizontal angle bar 146 extending between uprights and 46.

l/Vhen lug 144. is in engagement with the upprevents jarring disengagement of the lug and notch.

'gagement with lug 144. A cam block Coin controlled means, however, are providedfor liftingbar 141 out of locking enofproper contour is secured to disk 81.

Lever 150 secured torod 151 journaled at its ends to uprights 45 and 46 is adapted'to ride over cam block when disk 81 is rotated- A lifting lever 152 fixed to rod 151 and rotatable therewith has a shoe formation 153 at its outer end projecting laterally therefrom. Shoe 153 is adapted to ride over incline surface 154 formed on the underside of bar 141.

Now it is seen thatas coin engaged disk 81 is rotated, cam block 149 swings the upper end, of lever 150 in an outward direction against coil spring 155 rotating rod 151 through a small angle, raising shoe end 153 'of lever 152, which in turn raises the lower end of locking bar 141 against the action of coil spring 147 and out of locking engagement with lug 144. i

While bar 141 is held in raised unlocked position by lever 152,'shutter 135 is'opened by the exertion of a longitudinal rearward pull 'on' bar 141. This is accomplished by .crank arm 156 securedto the end of shaft 82 and rotating with coin engaged disk 81.

A stud element 157 projecting laterally from the lower end of'crank arm 156 extends through. an elongated slot 158 in looking bar 141. As'coin engaged disk 81 is rotated,

said element 157 engages the bar 141 and carries it rearwardly, until shutter 135 is raised and lug 144 slides into engagement with'upper notch 142, due to the pull exerted by coil spring 147. At this point the coin is ejected from the'coin' control mechanism, and coin engaged disk 81 is pulled back to normal position by coil spring 107.

Means are provided for unlocking shutter in Fig. 2, a connecting rod 159 joins switch element extension 78 to a lever 160 fixed to a rod'161journaled in a suitable bracket 162. Lever 163 is fixed to rotatewith rod 161 and is connected to 'a lever 164 by means of a can a. counterclockwise direction bybell crank lever 109 connected. to coin engaged disk 81 and clockwise by stud member 129 carried by disk 128 rotated by the timing mechanism. Rod 166 has secured thereto a small trip plate 168 adapted to engage the lower corner 169 of the locking bar 141 to raise the bar out of locking engagement with lug 144 as the rod is rotated counter-clockwise by coin engaged disk 81, as above described. The raising movement is rapid; after'wh'ich trip plate 168 gives the locking bar a forwai throw, which, with the aid of gravity, moves the shutter to closed position.

I The down ward pull exerted by coil spring 147 on bar 141 causeslug 144 to slip into lower notch 143 to lock the shutter when it has reached its closed position. When stud member 12% on disk 128 carries'switch element extension forwardly, stopping the motor, trip plate 168 is returned to normal inoperative position, permitting the lower corner 169 of the locking bar to be moved thereover, as the shutter is opened. Thus, it'is seen that shutter is automatically unlocked and opened by coin control mechanism, and automatically unlocked from open position, moved to closed position, and locked in closed position by timing mechanism.

Means are also provided to move a fresh section of the band material into operative position across the cushion during the engagement of lever 98 with disk 81 and accomplished during the first few reciprocations of the band supporting frame. Referring to Figs. 6, 7 and .8, a ratchet wheel 170 is fixed to and rotatable with feeding cylinder 29, heretofore described. A pawl memher 171 is fixed to shaft 172 journaled to horizontal supporting members 48 and .49. =The pawl isnormally held out of operative engagement with the teeth of the ratchet wheel the by coil spring 17 3 securedto the supporting member 49 and downwardly extending lever 174 fixed to shaft 172. A lever 175 fixed t shaft 172 is joined by'connectinga rod 17 6 to another lever177 fixed to rod 151. A leaf spring 178 fixedto lever 175 is arranged to exert a pressing force on the head of pawl 17 member 171, pressing it toward the ratchet teeth and against the actionof coil spring 173.

lVhen the coin engaged disk is rotated'as above described, levers 177 and 175 are swung outwardly, increaslng the pressure of leaf i the coin engaged disk, bell crank lever 107 throws the motor into action, reciprocating band supporting frame 17. Feeding cylinder 29 and ratchetwheel 170, carried by the frame, now move upwardly and downwardly. As pawl member 171 is at this moment in operative engagement with the ratchet wheel teeth, the ratchet wheel and feeding cylim :r are rotated through a certain an le at each. upward movementof the frame. This rotation, it is seen, continues as long as the pawl member engages the ratchet wheel. But since the pawl member is thrown into ratchet engagement by rotation of the cam engaged disk, this engagement only continues while the coin is rotatin disk 81. As soon as the coin is ejected, disk 81 is returned to its normal position by coil spring 107. Thus. it is seen that pawl 171 engages ra chet wheel only momentarily, but sufficiently long to engage at least one tooth and rotate the ratchet wheel through the arc of that tooth, for a purpose presently to be described.

Ratchet wheel 1'50 has two teeth, 179 and 180, spec-ed diametrically 1 ort, of greater r pitchthan other teeth oi the wheel. as shown in Figs. (.3 ans 7. The head of an elongated 181 pivot ng about pin 182 pawl mom me support is torccd to ride cured to on the ratchet wheel teeth. by coil spring 183.

Tee h 1'59 and 180 are of such length that the elongat c pawl. merely idles on them 'when theband supporting frame is reciprocateil. Now. when a coin has been inserted into the machine and coin engaged disk 81 is rotafed, pawl. 171 is moved into operative 'ement with the ratchet wheel 170 and rotat es the wheel through an are measured by the pitch of the engaged tooth. lhisinitial rotziition of the wheel suilicient to move the l ongated pawl 181 oil" the large uccessive smaller ias been e ected,

i L 181 continues to engage the smaller teeth rotating the. wheel and feeding cyliwler u .-l the next large too h is reached The pawl is then no longer able to rotate the wheel and feeding cylinder and idles onthe large tooth. Thus, it is seen that,

by means'ol the initial rotation oi? the ratchet 65 minute needles or other devices adapted wheel effected by pawl 171 and the later rotation effected by pawl 181, the feeding cylinder is rotated through a 180 angle during the initial reciprocations of the band supporting frame. The surface of rho feeding cylinder may be covered.with a series o to upon l'urtu-er reciprocation ot the coin slot 88. and lodges between the disks 81 and. 87. Handle 98 is then grasped and pulled forwardly, during which movement lugs 95 and 96 on disk 87 engage the edge of the coin and move i forwardly, the upper front edge of the coin striking the rounded abutment l formed on coin engaged disk 81. Disk 81 then rotates along with d sk 87. As coin engaged disk 81 begins to rotate,

flit) cam 'ilate 149 secured thereto swings lever' 15-0 outwardly, turning rod 151, raising the shoe end of lever 152, which in. turn raises lower notch 143 on the locking arm 1-il1 out of engagement with lug; 144. 'llhe shutter is now unlocked. Upon further rotation of the coin engaged disk 81. cranl: arm 156 connected thereto engages the locking; bar 141 and exerts a longitudinal pull thereon, carrying it rearwardly, raising the slin ter 135. lVhen the shutter has been moved to full open position, lug 14 1 slips into upper notch 14-2, due to the downward pull of coil spring 14?. and the shutter is locked in open position.

Bell crank lever 109 is moved into engagement with switch element extension 78, and swings it outwardly to avoid stud 129. The switch element extension is then carried along with the bell crank lever as coin eugaged disk 81 is rotated, until switch element 72 is thrown, electrically connecting terminals 68 and 71 and starting the motor; After this has transpired, and during the final stage of rotation of disk 81, pick point 103 slides under the coin, loosens it "from its clamped lodging between lugs 95 and 96 and abutment 94:. and finally ejects it through onlarged opening 92. Disk 81 is then pulled back to neutral position by coil. $-I]')Il1l.: 101'. also,carryinghell crank lever 199 back to neutral position. The coin has done its work.

When lever 150 is swung outwardly bv the rotation of disk 81, pawl 171 is moved into operative engagement with ratchetwheel 17 0. As soon as the switch element is thrown and the motor started, band carrying frame 1'? begins to move up and down in a reciprocating manner. Pawl171 engages a tooth o the ratchet wheel, turning the wheel throuah a small are measured by the pitch of the. tooth. suiiicient to move elongated pawl 181 from its idling posit on on one of the large teeth of the wheel. has served its purpose and disengages from the ratchet wheel tee h as soon as disk 81 returns to neutral position upon ejection oi the When this is accomplished, pawl 11 1 wardly to close the shutter.

coin. Feeding cylinder 29 is revolved until the next large tooth is reached by elongated pawl 181. Using two large teeth as shown in the drawings, the feedingcylinder, which engages the polishing band, will be revolved "I: i g. c 180, a SLIlliLlQlll; cistance to di aw the requli ed length of fresh band from reel 24 across the cushion 123 into polishing position. The length of section drawn from reel 2% is, of

course, determined by the diameter of the feeding cylinder 29 and the number of large teeth on ratchet wheel 170. The linger nails may then be held against the'reciprocating polishing band, cleaning-and polishing them.

Arm l'follows the reciprocating frame 17, and the pawl 121 thereto attached rotates ratchet wheel 120 through an are measured by the pitch of its teeth, movement of the frame. Disk 28 is connected to'the ratchet wheel 120 by gearing. tud member 129 engages and throws switch element extension 78, stopping the motor. Disk 128 has then made a complete revolution. Trip plate 168, joined to switch element eX- tension 78 through a series of leversand connecting rods, is also operated by the same movement, raising locking bar 141 out of engagement with lug 14d andthrowing it for- Lug 144.- then slips into lower notch 14:3, locking the shutter in closed position, completing the cycle of operation. The shutter is of light weight and drops gently, so that the fingers being polished cannot be injured by the dropping shutter. I Y

The polishing band, as well as the polishing compound, are of such texture and characteristics that the compound will readily adhere to the band and he carried along therewith during the reciprocations of the band. By this novel arrangement the compound can be applied to the linger-nails and the nails polished simultaneously and bythe same device. Furthermore, since the band is completely enclosed within the casing when not in use, and a fresh and unused section is moved into position at each operation of the machine, the polishing operation is clean, sanitary and hygienic.

fll hile applicants machine is particularly T adapted for polishing linger-nails, it unundcrstood that operations such as sanding,

- grinding, brazing, sawing or other operation or treatment requiring a reciprocating medium, may be per formed thereon, by simply se-uring to, the reciprocative frame of the machine the proper operative band or elemen". Therefore, as many changes could be n ade in the above construction and as many apparently widely diii'eront embodiments of this nvention could be made without departing from the scope thereof, it is int-en allmatter contained in the above description at each downward ded that or shown in-the accompanying drawings shall be interpreted as illustr: e and not in a limiting sense.

What I claim is 1. in an. apparatus of the character described, the combination with an operation surface, means for reciprocating said surface, coin control mechanism for throwing said reciprocating means into operation and control means for throwing said reciprocating means out of operation after a predetermined number of reciprocations of said surface. i

2.111 an apparatus of the character de scribed, the combination with an operating surface, a casing, opening in said casing, means for reciprocatingsaid surface across said opening, a shutter for said opening normally in closed position, coin control means for opening said shutter and throwing said reciprocating means into operation,

and means for throwing means out of operation.

3. In a machine of the character described, the combination with an operating surface, an opening, means for reciprocating said surface across said opening, a shutter for said opening, coin control means operative to simultaneously open said shutter he reciprocating and throw said reciprocating means into operation, and means for throwing the reciproca s ing means out of operation.

4. In an apparatus of the character descri Jed, the combination with an operating surface, an opening, means.for-reciprocating said surface across said opening, a shutter for said opening, coin control mechanism operative to simultaneo s y open said shutter and thr w said rccl coating means into operation, means operative to close said shutter after, a predetermined number ofreciprocations of said .nrfac across the opening, and means for throwing the reciprocating means out of operation. 1

5.111 an apparatus of the character described, the combination with an operating surface, an opening, means for reciprocating said surface across said opening, a'shuttor for said opening normally in closed position, means operative to open said shutter,

and to simultaneously throw said reciprocatration, means operative ing means into op? after a predetermined to close said shu number of recipr cations of said surface across said openin an i for throw- 7 7 1111311 apparatus of the character described, the combination with an operating V siirtaee, an opening, means. for reclprocating said surface across said opening, ashutter for said-opening, coin control, means operatiye to open-said sh-utterand mechanism including means operative to unlock and means operativeto close said shutterafter a predetermined. number of reciprocations of said surfaceacrossvthe opening. g V

8. In an apparatus of thexcharacter described,vthe combination with an operating surface, ano ening means for recipricating said surface across said opening,

a shutter for said opening, col-n"controhmeans opera time to opensaid shutter, fandmeohanism neluding aneansioperatiye to: closesaid shutter v and means operative tolock said-shutterin closedposition after a predetermined numher; o fi reciprocations of said surface across said opening 7 "9. Ina polishing machine of the character across said opening agshu tter for said opening, mechanism simultaneously :operative ,s iaced'rotatable disks-adapted to re zeive a .c0in tb enebetw'een; means associated with said: disks-adapted toengage the coin andro- -tate said second disk npojn rotation of the first an Vaperturein the. wansof one of said disks, [means to remove the 00111 through g p U I jstarting} an electric motor 00mph upon the insertion of a coin into said maehineto open said; shutter and to throw'said reciprocating means into operation, and means; for throwingjthe reciprocating means i oil-t ofoperation-l 11.v In combinat'onWithareceptacle hav l 'ing an opening, a shutter for said opening; and-coin controlmeans for automat callyoperating said shutter comprising" a pa r of 5 said-aperture after said-disks have beenrotated through Ia predetermined angle and means; connecting-said second diskwvi-th said 12; 1001-11 control mechanism comprising,in

' combination, 'a'pai'r of spaced rotatable disks adapted to receive/1a, coin therebetween, a

{laterally projecting lug on each; of said disks adapted to engagetheedges ofthecoin toroltate' said second disk upon rotation of the iirst,.an1 aperture in the wallet one of; said -Qd'iSkSy; az'resilient. member v adapted to releas ably retain'the coin withinsai'd apertur and means to remove the cointhrough. said. aperture after rotation of said: disks throlrgh a predetermined angle.

13 Coin control mechanism comprising, in

terminedlanglle p g r I4 Coin control mechanism comprisindgin i nivardl on Whrc v p wardly pro .ect1ng lug on cachof said disks combination, a pair of spaced: rotatable disks adapted to receiye afcointherebetween, :an inwardly projecting lug on each of sai disks adapted to engagethe edgesoftheooin androtate said second disk upon rotation of the first, an elongated aperturein the wall; of

rotation movement, and means adapted to remove the coin through said enlarged opening after rotationof said disks through a predecombination, a pair of spaced rotatable isks iad'ap't'edhto receiYe a coin therebeitweeng an l'projectinghub onfone or saiddisks the coin is adapted to resent; in-

adapted to engage the edges ofthe coin: and

rotatesaid second disk upon rotationofthe first; an elongated apertureinthe Wall ofjone of said disks having anenlarged'opening at one end, ;a-,resil1ent member adapted to re: v

leasably retain the coin within said enlarged opening during the beginning ofthe rotation movement, and 'a pick member projecting into said elongated aperture and, adapt d to remove the coin tl'i-rough said enlarged op 'ningafter'" rotation of said disks predetermined angle. I 15. In apolish n-g machine, the combination with a polishing surface, an electric motor,operatively connected to reciprocate sai d surface, and coin; controlled switol'i mechanism for starting said motor i iicludiiig" a pair of spaced rotatable disks adapted" to receive a 1 coin therebetwee me hS as ociatedjwith said disks adapted to engage coin to rotate said se'conddisk upon rotation of the'first, a switchelectric'ally cof ted to said motor, and means connectedjt second disk and adapted to engage switch, 'to thFOW same'after'said d sks h.ave-been rotated through a; pfr termined angley I] 16. A coil controlledsivitch mach;

n "in a comb nation, a, pair ot spaced rotatable d sks adapted to receive a coin therebet,wen,m ans associated with saidldisks adapted toen'gage the coin to rotate said second disk 11 m" rotation off'the first, a switch adapted for elieetrical connection with saidmotor, and pivotedbell crank leverhaving oneai'mcom nected tosaid second diskf'and its other arm adapted to engage saidswitch to throw the same after said disks have'been rotated through a predetermined angle.

, 1 ]E7- In a machine of the character described 1 including, in combinatioma casing, an opening 'in said casing,' a shutter forsaidi opening normally locked position a locking bar connected to said shutter, a'notchin said locking'bana lug adapted'to cooperate with said notch, andcoin' control mechanism operative to raisesaid bar out of locking engagement'vvith said lug to unlock the'shutter upon the. insertion of an authorized coin in said machine; a

' t 18. In'a machine ofthecharacterdescribed' including, in combination, a casing, anopen- 'ing 7 in said casing, a shutter for said opening normally-in locked position, and coin control mechanismoperative to unlock said shutter including a pair of spaced rotatable disks, means associated with said disks Wherebyupon the insertionof an authorizedcoin' between saididisks and the rotation of one i i of said disks, the second disk is rotated, a locking bar connectedto'said shiitter,falug adopted to engage; said locking bar, and means operative toengagefsaidsecond disk to ,raisesaid bar. out of lockingengagement Wlth said lug when said second disk' is rotated.

- l9fIn a' niachinefof the character deiscribed including, in combination, a casing,

an opening in saidcasing, a shutter for said opening normallyin locked position, a bell crank lever hinged to said shutter, a locking bar-"connected to said lever,'a lug adapted to engage said locking bar, and coin control means operative to move said bar out of locking engagement with said lug to unlock said shutter upon the insertion of an authorized coin intosaid mach ne' 205111 a machine of the character described including, in comb nation, a casing,

an opening in said casing, a shutter 'fo'rlsaid opening normally in closed andlocked position,a locking bar connected to said shutter,

21; lug adapted to engage said locking bar, and

coin control mechanism operative to move 'sa idbar out of engagement 'with said lug .to unlock saidshutter, and thento open said shutter.

21.;- In machine 0i the shaman scribed including, in combinatiomaIcasing,

an opening in said casing, a shutter forsaid "opening normallyin' closed and locked position,.a bell crank lever hinged to saidfshutter, a 'locking bar connected to said lever, a

lug ad ap ted to engage said locking' b'ar, and

coin control mechanism operative to raise said barout of engagement ivi'thsaid lugto unlock said shutter and 'then' to carry said 7 bar in a longitudinal direction to move said shutter to open position,

22. In a machine-of the character described including, in combination, a casing, an opening inlsaid casing, a'shutter for'said opening normally in closed and-lockedposition, and

mechanism operative to unlock and open said shutter includ ng a pairoi spaced rotatable a disks, means assoc ated w th said disks I hereby'uponthe-insertion of an authorized j 1 coin between said disks and thei'rotation of one of said disks, the other of saidfdi'sksis i'otated," a locking bar connected to said sliutscribed including-,-

said shutt'er at the 'endof ter, a lugadapted toengage said locking bar,"me'ans operat ve to raise said locking bar out of engagement with said lug to unlock fsa-id shutter upon initial rotation of said second disk, and means operative tomove said bar longitudinally to open said shutter upon-further rotation ofsaid' second disk,

23'." Ina machineoftlie character described including, incom'bination, a casing, an opening in said casing, a shutter for said opening normally-in closed position, and mechanism 7 operativeto open s'aid'sliutter inclu'ding'a 'pairfof'spacedli-otat'able disks, means associatedivitlis disks whereby upon the insertionof an authorized coin between said disk's'andthe rotation-of 'one ofsaid disks, the

'otliei-disk is i'otat'ed, a locking bar connected connected to saidsec'ond disk and adapted to "engage said slot to movesaidsba -iongitudr nally to open said shutter. w 7

24.11 g macliine ottlie character dein' c'ombination, a casing, an opening in said ca'sing, ashutter for said opening normally inciosed and'locked position, and coin control mechanism operative to unlock and open said shutter including a rotatable disk, a locking barcoii'n'ected to said shutter, a lug adapted to engage said locking bar, a cam sin-taco connectedto said disk,

means operative to engage said cam" surface to 'aise sa d bar out of'e iga'gement With'said lug to'unlock the shutter, and a lever connected to said diskand adapted to move said bar tter upon further-rotation 'oisaid disk; L a

longitudinally to open said sliu 25; Apolishing machine of "the" character described COHIPIESIDg, in combination, a casing, an opening nsaid casing, a shutter for V of api edeteiniined number of recipiocations'."

A a 26. A'polishingmachine o f the described comprising, -in combination, a casing, an opening in said casing, a shutter for said opening, -;a polishing surface' adjacent said opening, meafns operative to reciprocate said suria'celjcoin control" means i'oi tlii'ow ing said'recip'rocating means into operation, automatic neans associated 'vithsaid control.

'means o iz-erati'veto 'open said shutter When 'said'surface begins to re'ciprocate,means operative'to 'liold said shutter open during a' predetermined number of said *lGClPI'OCEh 'tionsgandautomatic ineans operative to close aid predetermined number ofreciprocatioi' s i C27. gi -polishing means of'tlie character deto said shutter, aslot nsaid bar and a lever V fee scribed comprising, in combination, a casing,

an opening in -said casing, a shutter for said a. polishing surface ad acent said reciprocating means into operation, automaticmeans associated with said control means,

: means operative to cates, "and V predetermined said surface.

said surface m ned number I of times, (:01

operative to open said shutter when said surface begins to reciprocate, and means operative to hold said shutter open during the continua'ncy of said reciprocations.

28.'A polishing machineof the character described comprising, in combination,

a casing, an opening in said casing, a shutter for said opening, a polishing surface adjacent said opening, means operativeto reciprocate during periods of a predetern control means for throwing said reciprocating means into operation, means operative to lock'said shutter in open position during the'continuancy of said reciprocating periods,and automatic unlock said shutter from its, open position atthe end of said periods of reciprocation.

described comprising, in combination, a casing, an opening in said casing, a shutter for said op'ening,-a polishing surface adjacent said opening, means operative to reciprocate said surface, coincontrol means for throwing said, reciprocating, means into operationmeans operati e to lock said shutter in open position during the continuancy of said reciprocations, and mechanism having means adapted to engage said surface as it reciproieans to disengage said locking means from looking position to permit said shutter to close a fter'a predetermined number of reciprocations of said surface.-

30. A'polishing machine of the character described comprisingfin combination, a casing, an opening insaid casing, ashutter for said opening, a polishing surface adjacent said 0 enin means 0 erative to red rocate said surface, coin control means for throwing said reciprocating means into'operation,

means comprising a locking bar connected to said shutter and a lug adapted to engage said bar to lock said shutter in open position tions, and mechanism including means adaptedto engage said surface as it reciprocates and means to disengage said bar from said lug to permit sa d shutter-to close after a 31, A polishing machine of the character described comprising, in combination, a casing, an opening in said casing, a. shutter for said opening, a polishing surface ad acent said opening, means operative to reciprocate a locking bar connected tosai'd shutter,'a lug 29. A polishing machine of the character number of reciprocations of 'tinuancy of said reciprocations,

adapted to engage said shutter in open position ing, coin control means for throwing said during the continuancy of said reciproca- I reciprocating means into operation, means for feeding a. fresh supply of said surface into operative position at predetermined times, and means'for throwing the reciprocatingmeans out of operation. I

33. In a machine for polishing finger nails, the combination with a polishing surface comprising a'band impregnated with polishing material, a casing having an opening, means for reciprocating said band opposite said opening, coin control means for throwing said reciprocating means into operation, and means for throwing the reciproeating means out of operation. a

34, In a mach'ne for polishing finger nails, the combination with a polishing surface comprising a band impregnated with polishing material, a casing having an opening means for reciprocating sa-id band opposite said opening, coin control means for throwing said reciprocating means into operation, means for movinga predetermined section of fresh band material into operative position at predetermined times, and means for throwing the reciprocating means out of operation.'

35. In a nail olishing machine, in combination, a roll 0 band material impregnated with nail polish, a casing having an opening and coin controlled means for drawing a length of said ribbon from said roll and placing said length in operative position opposite said opening at predetermined times. V

This specification signed this 6th day of February, 1928. 1

' LOUIS W. SCHAAFF. 

